Cream-separator.



PATENTED JAN. 20, 1903.

M. JOHNSRUD.

CREAM SEPARATOR.

APPLICATION FILED r23. 24, 1902.

H0 MODEL.

UNTTED STATES PATENT OFFICE.

MARTIN JOHNSRUD, OF CHICAGO, ILLINOIS.

CREAM-SEPARATOR.

SPECIFICATION forming part of Letters Patent N 0. 718,936, dated January 20, 1903.

Application filed February 24, 1902. Serial No. 95,227. (No model.)

lo aZZ whom it may concern:

Be it known that I, MARTIN JOHNSRUD, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cream-Separators, of which the following is aspecification.

This invention relates to improvements in that class of cream-separators in which cream is separated from the milk by centrifugal force; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.

The principal object of my invention is to provide a crea m-separator which shall be simple and inexpensive in construction, strong, durable, rapid, and thorough in its operation, and which shall be so constructed that the parts thereof may be easily detached or disconnected for the purpose of cleaning, which parts shall be of such form and construction that there will be no sharp angles or corners, thus enabling them to be easily and thoroughly cleansed.

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe it, referring to the accompanying drawings, in which Figure 1 is a vertical sectional view, partly in elevation, taken on line :1; a: of Fig. 2 looking in the direction indicated by the arrows, showing a cream-separator embodying my invention. Fig. 2 is a plan sectional view taken on line y y of Fig. 1 looking in the direction indicated by the arrows. Fig. 3 is a plan section of one of the separator-sections. Fig. 4 is a view in side elevation of a portion thereof. Fig. 5 is a cross-sectional view taken on line u u of Fig. 3 looking in the direction indicated by the arrows, and Fig. 6 is a similar view taken on line 2 z of Fig. 3 looking in the direction indicated by the arrows.

Similar letters refer to like parts throughout the different views of the drawings.

A represents the cylinder of the separator, which is preferably externally screw-thread ed at its upper and lower ends to engage caps B and 0, respectively; but said caps may be screwed into the ends of the cylinder or otherwise fastened thereto. The upper cap Bis provided with a hollow and open extension, through which milk is supplied to the interior of the device. The cap 0 is formed or pro vided with a hollow in ward extension O',which also projects outwardly, as shown.

The lower portion of the extension or neck 0' is provided with a series of openings 0, communicating with the lower portion of its cavity, through which the cream may pass.

The bottom of the cap 0 is provided near the extension 0 with a series of openings 0, through which the milk may pass. Located on the top of the extension C is an annular disk D, which has in its central portion an opening d, communicating with the cavity of the extension 0 in the lower cap. This disk, as is clearly shown in Fig. l of the drawings, ext-ends nearly to the inner surface of the cylinder A, but leaves sufficient space therebetween to permit the milk to pass into the chamber d, which said disk forms. Located vertically in the cylinder A are two substantially segmental or semi-annular separatorsections E and E, which are counterparts of one another, and each comprises a series of transverse corrugations or shell like or shaped portions 6, one above the other, which are joined together at their inner and adjacent edges by portions e of the material out of which the sections are made, which material is preferably tin or sheet metal. As will be clearly understood by reference to the different views of the drawings, each of these corrugations or shells is flaring toward its center, but tapers toward its outer portion and has in its said portion a slot e through which the milk and cream may pass. Besides having the slots 6 as above stated, each of the shelllike portions e is formedwith cut-out parts 6 and depressions e so as to afford spaces between the inner surface of the cylinder and the outer portion of said pieces. Each of said pieces is also provided with extensions e and e to rest against the inner surface of the cylinder, and the extensions 6 are open at their outer edges, as is clearly shown in Fig. 3 of the drawings. The portions e, uniting the corrugations or shell-shaped pieces 6, are provided with slots e", which permit the cream to work back over the curved surfaces of the pieces 6 into the opening g, which is formed by placing the two segmental sections together so that the ends of the corrugations or shell-like pieces will telescope one with the other, as is clearly shown in Fig. 2 of the drawings.

The operation of my separator is simple and as follows: The segmental or semi-annular sections E and E are placed together so that the ends of the portions 6 will telescope or overlap each other, thus forming substanstantially a circular device with horizontallydisposed corrugations or shell-shaped parts. When the separator-sections are thus united, they are placed within the cylinder so as to rest at their bottom on the disk D, when the piece D, secured to the bottom of one of the sections, will engage the recess d in the cylinder, in which position said sections will be securely held within the cylinder, so as to rotate therewith. The cylinder is rotated ata very high rate of speed by any suitable means, and in its rotations the milk, which is supplied thereto through the opening 17, is given a whirling motion, and the separation of the cream and milk is thereby immediately begun. As the device continues to rotate the larger cream globules will find the opening g in the separator-sections, and the milk will pass outwardly through the slots in the outer portion of the shell-shaped portions and down the wall of the cylinder through the depressions Q and recesses 6 until it reaches the disk D, when it will pass into the chamber d and out through the openings 0, while the cream will pass from the opening gin the separator-sections into the cavity of the extension O and out through the opening 0 in the lower portion of said extension. The cream globules which may have been carried outwardly with the milk toward the wall of the cylinder will travel back toward the opening g in the sections E and E over the sloping surfaces of the shell portions.

Having thus fully described my invention, What I claim as new, and desire to secure by Letters Patent, is-

1. A cream-separator, comprising a cylinder having in its upper end a supply-opening and outlet-openings in its lower end for the cream and milk, and segmental sections vertically located within the cylinder and having a series of horizontally-disposed corrugated portions, the said portions of one section overlapping the said portions of the other section in circular arrangement, substantially as described.

2. A cream-separator, comprising a cylinder having in its upper end a supply-opening and in its lower end outletopenings for the cream and milk, and segmental sections vertically located within the cylinder and having a series of horizontally-disposed corrugated portions provided with slots in their outer parts, the said portions of one section overlapping the said portions of the other section in circular arrangement, substantially as described.

3. A cream-separator, comprising a cylinder having in its upper end a supply-opening and in its lower end outlet-openings for the cream and milk, a disk located in the lower portion of the cylinder, but at a slight distance from the bottom thereof, and segmental sections located vertically within the cylinder and having a series of horizontally-disposed corrugated portions provided with slots in their outer part, the said portions of one section overlapping the said portions of the other section in circular arrangement, substantially as described.

4. A cream-separator, comprising a cylinder having in its upperend a supply-opening and in its lower end outlet-openings for the cream and milk, a disk located in the lower portion of the cylinder at a slight distance from the bottom thereof, and segmental sections vertically located within the cylinder and having a series of corrugated portions,

the said portions of one of the sections tele- MARTIN J OHNSRUD.

Witnesses:

CHAS. C. TILLMAN, A. GUSTAFSON. 

